Mattress winding and wrapping machine



Feb. 9, 1954 J, W, ROLL 2,668,405

MATTRESS WINDING AND WRAPPING MACHINE Filed Jan. 29, 1951 10 SheeS-Sheetl Feb. 9, 1954 J. w. DRoLL MATTRESS WINDING AND WRAPPING MACHINE lOSheets-Sheet 2 Filed Jan. 29, 1951 MIJ.

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Mw QNNI ww RW (DN Feb. 9, 1954 J. w. DRoLL MATTRESS WINDING AND WRAPFINGMACHINE 10 Sheets-Sheet 3 Filed Jan. 29, 1951 Feb. 9, 1954 J. w. DROLLMATTRESS WINDING AND WRAPPING MACHINE l0 Sheets-Sheet 4 Filed Jan. 29,1951 Feb. 9, 1954 J, w, DROLL 2,668,405

MATTRESS WINDING AND WRAPPING MACHINE Filed Jan. 29, 1951 10Sheets-Sheet 5 Feb. 9, 1954 J. w. DRoLL /m'Vn-'mss WINDING AND WRAPPINGMACHINE Filed Jan. 29, 1951 10 Sheets-Sheet 6 Feb. 9, 1954 J. w. DRoLl.

MATTRESS WINDING AND WRAPPING MACHINE l0 Sheets-Sheet 7 Filed Jan. 29,1951 OOOOOOOOGOOQOO@ .N NNN N -uw w51 O Feb. 9, 1954 J. w. DRoLI.

MATTRESS WINDING AND WRAPPING MACHINE l0 Sheets-Sheet 8 Filed Jan. 29,1951 Feb. 9, 1954 J. w. DRoLL MATTRESS WINDING AND WRAPPING MACHINE 10Sheets-Sheet 9 Filed Jan. 29, 1951 hzfs Feb. 9, 1954 J. w. DRoLLMATTRESS WINDING AND WRAPPING MACHINE 10 Sheets-Sheet lO Filed Jan. 29,1951 Patented Feb. 9, V1954 2,668,405 MATTRESS WINDING AND WRAPPINGMACHINE Joseph W. Droll, Chicago, Ill., assignor, by mesne assignments,to Meridan Corporation, Providence, R. I., a corporation of Rhode IslandApplication January 29, 1951, Serial No. 208,278

12 Claims. (Cl. 53-52) The invention relates to mattress wrapping Ymachines.

One object of the invention is to provide a machine for conveniently andexpediously wrap- -ping mattresses.

Another object of the invention is to provide a machine of this typewhich includes an expansible mandrel for gripping the leading end of theweb of wrapping paper, and is contractible to release the paper and thewrapped Ymattress for its endwise withdrawal from the mandrel.

Another object is to equip a mattress wrapping machine with improvedmechanism for reversing the portion of the paper Wrapped around themattress from the web from a. supply roll.

Another object is to provide improved mechanism for automaticallystopping therotation of the mandrel after a predetermined number ofrevolutions.

Another object is to provide a mattress Wrapping machine which iseihcent, has a high capacity, and can be conveniently controlled in itsoperation. p

n Other objects will appear from the detailed description.

The invention consists in the novel features hereinafter set forth andmore particularly defined by claims at the conclusion hereof.

In the drawings:

Fig. 1 is a perspective view of a machine embodying the invention;

Fig. 2 is a front elevation;

Fig. 3 is a longitudinal section taken on line 3 3 of Fig. 2;

Fig. 3a is a detail perspective view of the bar carried by the mandrelfor indicating the extent of extra revolutions of the mandrel;

Fig. 4 is a side elevation of the portion of the machine in front of therolls of Wrapping paper;

Fig. 5 is a section taken on line 5--5 of Fig. 4;

Fig. 6 is a longitudinal section illustrating the position of a mattressVon the `front table section at the commencementof a winding operation;Y Fig. 7 is a similarview` illustrating a mattress partially wound andwrapped; 'I y n Fig. 8 is asection taken on line 8,-8k oi Fig. 4;

. Fig. 9 is a central longitudinal section illustrating the cuttermechanism for severing a sheet Wound around the mattress from the webfrom a supply roll; I

Fig. 10 is a section taken on line l-IU of` Fig. 9;

Fig. 11 is a section taken on-line II-H of Fig. 9;

Fig. 12 is a transverse sectonillustrating the 2 clutch for the gearingfor driving the mandrel, parts being shown on elevation;

Fig. 13 is a section taken on line |3-l3 Yof Fig. 12; y

Fig. 14 is a perspective view of the dog for holding engaged andreleasing the rclutch for driving the mandrel;`

Fig. 15 is a perspective of the stud engaged by said dog;

Fig. 16 is a longitudinal section of the collapsible mandrel in itsexpanded position;

Fig. 17 is a transverse section taken on line ll-l'l of Fig. 16;

Fig. 18 is a section'taken on line |8-I8 of Fig. 16, the mandrel beingcollapsed;

Fig. 19 is a partial section taken on line |9-l9 of Fig. 18, the mandrelbeing shown collapsed;

Fig. 20 is a partial section taken on line 20-20 of Fig. 17, the mandrelbeing shown expanded in full lines;

Fig. 21 is a transverse section taken on line 2I-2l of Fig. 4; and

Fig. 22 is a diagram of the electrical connections of the circuit forcontrolling the cutter mechanism.

The invention is exempliedin a machine which comprises a supportingframework which includes a. pair of side frames 25, a cross frame 26, across frame 21 and cross bars 28 and 29, all secured together to form arigid structure. The rear portion of the side frames 25 is provided withopen ended bearings 30 for supporting the cores of a series of rolls ofpaper 3| for wrapping the mattresses. These rolls of paper may be ofdifferent weight or color for selective use in wrapping the mattresses.A rear table section 33 has a tube 34 xed to its front edge and saidtube' is pivotally and removably supported Vin open ended bearings onthe side frames 25. Table section 33 is supported in its horizontalposition by legs 36 which are pivoted to said Vsection at 3'! and togglebraces 38 between said legs and the central portion of said tablesection. Legs 3l rest onlugs 39 on side framesV 25. Table section 33 andits supporting legs may be swung upwardly in the bearings for tube 34,or the legs 36 may be collapsed. The table section 33 may be bodilyremoved from the supporting frame for access to a web of paper'from oneof the rolls 3l or to the mechanism beneath table section 33. A fronttable section 42 has fixed to its rear end a tube 43 which is pivotallyconfined in open ended bearings in side frames 25 and has its front endsupported by'a pair of levers 44 which are connected by a shaft 45 whichis pivotally supported in bearings 45 on cross frame 26.

3 The front ends of levers 44 are connected by links 46 to the underside of table section 42 and their rear ends are provided with weights4l for urging table sections 42 against a mattress thereon and pressingit against the mandrel hereinafter described. Table sections 33 and 42are adapted. :to dreceive ea' mattress f. and to: slida'bly support-it--while fit is being woundand wrapped, and the front table section isadapted to receive under the mattress a strip of paper from one of therolls 3|. The webaQ-f-.fllaper irmn...the selected roll 3i is fedforwardly' by a rubber covered roll 59 which is journalled in sideframes 25 and a coacting weightedfrclteriliewhiohiris slidable androtatably supporte'dlr'in o pen#er-ideal,

bearings 52. From rollers 5G'and1-5lf'the'webof paper passes through agapebetweenzrtherifrcnt end of rear table section 33 and the rear end offront table section 42, and onto the topefaee' of said front tablesection. Roller 5l may be held separated iromrdllill enricnmrenienceimthreading the web betweenfthem; by.-'a::fpedal;:z55rnnga shaft which iisflulernmedpn cross vframe; 2l,

arms 59' pivoted on side frames 25 andzadapted "t0, liftzrollersflvandlinks-connected tofpe'dal '-55 andato lifter armsgll,nspringepressedlatch 59 pivoted on one of the sideiramesiis adapted frto"hold :pedal @555.111 :postion-'tof' hold -roller 5l raised while theweb is threaded between rollers A collapsiblemandrel;generallydesignatedf5b,

fis: provided oirspirallyminding the mattress and wrapping a strip ofthe web of: paperiaround the --mattress 1 The;:mandrelfcm'nprises;;a-vsleeve 5 i which is iournalleddnea.bearingYM-oneoneof the Y side'iframes1:25,"` arpair; :cik innerz.peripheral A.secitionszfii-` haringiontwardlyizconnergent sides '555 pand ,a nairgof .outerperipheralesections et haringoutwardlyi convergent sides-tieloverlapping the sides B5 of the inner sections 64. ine end-pf, #sleeveGleise-supported dnffheazcing ;62 and theopposite end of the mandrelisiiree to=permitend wisev removal oi. the wrapped mattress from thev:manda-e1.

Longitudinal treiniocenigcbars (i8YY are xedly welded to the inner facesofsections :4

A `and longitudinal reinforcing .bars `,are :welded 5to A:the iin-nerfaces ci; said: sections. 1 The r sections .-5541 are ashiftableradiallyaor Y@clamping the free lend .of a fwrapping `strip'between ftheoverlapping -nnd portionsnf thesides .li-5- and elzof the mandrel-lsections by va stem 14 which :is slidelbleuina sleeve 1 El and isconnected bysalpainofvparallel :linkages 7toinnefpair of bars-138.aEach-icf-ffsinglelinkages e comprises afpair l.of links rliand .i1-8:having their :inner endsuconnected :by-:1a ypivotV pin? 'l1-.ato :istem`the barsz. Each inner section-:254 :is connected `fto 'the-stem 14by-.afpahl :of paralleli linkages,

teach of Whichrincludesraipainofflinks Jil', having v:end ofthewrappingpaper. "The, mandrlel'is conmractibleeto reduceits diameteitlandpermitiendwise :removal of wrapped mattress Ifroxnfthemanidrel and :to:spread apart fthe convergent side :of fthe finner` and outer y Sectionsto lrelease* 'the end aidrel are .eonned against :substantial"long-itudinal movement -by links' iillfwhiclh.` are? pivoted` at 1.81.to a collar :82 whichis'lxedto'sleevefl and x-atz83vto a reinforcingbari-158. Whenfthe mandrel is expanded, 'the overlapping convergent`sides/of fic the inner and outer sections of the mandrel are adapted togrip one end of the paper strip between them, and when the innersections are collapsed, the end of the strip can be inserted between thecontiguous sides of an inner and outer section. When the stem 14 is inthe position 'illustrated inf'Fi-gs. lfand theff toggle links zwillbecollapsedffand holdfthe inner l'sections 65 in position to permitinsertion of the end of a :,strip of paper between the inner and outer..,sections,of.the mandrel. When the stem l4 is the 'expanded-positionillustrated in Fig. 17, "the end of the paper strip will be grippedbetween theioyerlapiingffsides of an inner and an outer1sectionfandczsaidcsections will be locked by the toggle links to:retain said end in the mandrel, sothatupmlrntation of the mandrel thepaper and mattress willbe spirally wound around the `4frnanclrel as acore. When the mandrel is collapsed after a mattress has been wrapped,the diameter of ,themandrelswill be reduced to permit the free endwisewithdrawal of the mattress from vthe mandrel-.and simultaneously release.the inner end of cthe-lwrapper.

The stem 14 of the mandrel is slidablefinsleeve .f 6 l; 4ier operatingthe fmandrel -.,sections into:A ex- A pandedland contracted :positionsby a. `device which .comprises -a .two -arm `roclnn-lever 12,8 CE-tig- Y2)l is centrally; liulcrumed Yoncross .frame f igffafpair of vpedals :l2IY .and :l22-.operatiye1yconnected lby links fto thee/nds fof.the farmsY,on the -rcckerelefver respectively, a linklz lplanted to Vone armfoflever 2G-and tothe-lower tendete. `leverr 124 which is iulcrumed .at J2,5. on one fof the side frames 2,5 anda-collar- -lr2lwhich islcon.nested tothe ,outerend of stem J4. `I'hecollar i .122 `is connectedlao-stem 2A Y,bysscrew .studs `i253 --wh-ich extendfinto agroovein-saidstem for Slidably shifting and permitting rotation-@-Sad stem. Whenpedal221 ,is `.depressed it .will rock Y,lever 20 to operateilinkV I2-leverMend collar A27-and =slideestem- J4 outwardly rin sleeve 6l into theposition shown in Figs. 18 19. AThe 'inner,:mandrel sections-5will-thembe separated inwardly from the outer sections 6'! ,so v,thatlhe:end of: the;fstripfaof--wrapping paper. .can '.be, l.inserted-betweenconvergent isides of..an.inner `and an outer rsection as shownin Fig.`18. A. .stop .pin limits the inward movement; ofesectiont ,Whenfpedal42- 2v is depressed, stem J4 willbe shifted inwardly in sleevefll`toexpandthe toggle linkages 15 and 16 and `torcetheinnersec-tions :.65into position l'to `.clamp `the ,end ofthe .wrapping strip against oneof the outer .sections 6l, and grip the strip-1 and also to expand.themandrlelhas illustratedl ,ini-Fig. :17 so. that when .the mandrel isrotated, VVAtlf-legend t01E-the jstrip vof .paper :and the `Amattresswill Vbe spirally-,wound around the mandrel. l The linksf8i!betweenicollar. ,82, and the renforcingbars vori-the mandrelsectionshold .fsaid :sections against substantial v longitudinalmovementrelatively Vvtosleeve l The'rmandrel :isfselectively `driven bygearing :operated by ,anelectricmotor .which :is: mounted on a bracket 94 ,oncne oithesideframes 25,

`ior winding afmattress V4tin-:reen and simulmember 98 is held normallydisengaged. from member 99 by a spring I 02 and is manually shiftableinto driving relation with member 99 by a lever |04 which is fulcrumedat |05 on bracket 9|, a link |06 which is pivoted to the lower end oflever |04, a double-arm rocker lever |01 which is fulcrumed at |08 on abracket fixed to cross frame 26, and a pedal |09 which is connected by alink I 0 to an arm on rocker lever |01 for shifting link |06 and lever|04 to engage coupling members 98 and 99 to drive pinion |00, gear. I 0Iand sleeve 6| of the mandrel. This coupling is automatically controlledto stop the mandrel after a predetermined number of revolutions to windthe mattress around the mandrel and Wrap the strip of paper around themattress. For this purpose, a latch |I0 is pivoted at I II to the upperend of lever |04 and is urged upwardly by a spring II2. A tooth |I3 onlatch IIO is adapted to slip into a notch I| 4 in a stud I|5 which isfixed to one of the side frames 25. When the clutch members 98 and 99are disengaged, tooth ||3 engages the underside of stud I|5 and whensaid members are coupled said tooth snaps into notch ||4 and holds lever|04 to hold said members in coupled relation. The latch IIO isautomatically released at the end of a predetermined number ofrevolutions of the mandrel by a pinion I|1 Which rotates with gear |0|,a gear |I8 meshing with gear |0| and a striker bar I|9 which isadjustably fixed to one side of gear I8 and is adapted to engage latch|I0 to disengage tooth |I3 from notch |I4 against the force of spring|I2 at the end of each revolution of gear |I8.

The machine comprises mechanism for severing the trailing end of thestripy of paper behind the mandrel and at the gap between the frontsection 42 and the rear section 33 of the mattress-supporting table.This mechanism includes a rotary cutter disk |35 which is adapted totravel transversely across the web of paper under a cross bar |31 and atthe front edge of an inclined bed |36 over which the web of paper passesfrom the rollers 50 and 5| to the front table section 42. Disk |35 is`iournalled on a stud |38 which is supported in a carriage |39 which ismovable transversely in the frame and is provided with rollers |40.Carriage |39 extends between a pair of spaced channel tracks |4I inwhich rollers |40 are adapted to travel. Tracks |4I extend through theside frames and have their ends fixedly secured in brackets |42 whichare fixed to the outer sides of said frames. A sprocket wheel |43 isfixed to rotate disk and meshes with a sprocket chain |44 which is heldin engagement with sprocket wheel |43 by a track |45 which is fixed tocarriage |39. Each end of chain |44 is connected to a bracket |42 on aside frame 25 by/means of a block I 41 on a screw stud |48 which extendsthrough a lug |49 on bracket |42 and is provided with a nut |50 fortaking up the slack in or adjusting chain |44. As carriage |39I travelsalong tracks I4| transversely between side frames 25, the stationarychain |44 will rotate sprocket Wheel |43 and disk |35 will rotatethrough the web of paper and sever it at the front edge of bed |36.

Reciprocating strokes are impartedto the cutter disk |35 and carriage|39 by a reversible electric motor |54, an endless sprocket chain whichextends around and between a pair of sprocket wheels |56 which arejournalled in bracket |42, a shaft |58 to which one of the sprocketwheels |56 is fixed, and a worm gear |58'v which' is xed to shaft |58and is driven by a Worin wheel |60 on the shaft of motor |54. 'I'hestarting of motor |54y is selectively controlled by an electricdrum-type switch |62 and its stopping is automatically controlled forstrokes of predetermined length of the cutter disk and its carriage, bya pair of limit. switches |63 and |64 which are mounted on a pair ofangle rails I 65 xed to the side frames 25. The actuating arm of limitswitch |6I is shifted to open the circuit for motor I 54 connectedthereto by a spring-pressed cam arm or shoe |61 mounted on rails I 65and adapted to be depressed by the cutter carriage |39 after the cutterhas completed a transverse cut of the web of paper in one direction. Theactuating arm of limit switch |64 is shifted to open the circuit formotor |54 by a spring-pressed cam arm or shoe |68 mounted on rails I65-and adapted to be depressed by the carriage |39 after the cutter |35has completed, a transverse cut of the web in the opposite direction.

Feed roll 50 is adapted to be selectively driven to selectively feed theweb of paper forwardly after a strip has been wrapped around themattress and severed from the web, by a sprocket chain |1| between asprocket wheel |10 fixed to drive roll 50 and a sprocket wheel |12loosely mounted on shaft and adapted to be' coupled by slidable clutchmember 98 to shaft 95 which is adapted to be driven from motor 90. Apedal |14 is connected by a link to an arm of rocker |01 and when saidpedal is depressed it will shift link |06 and lever |04 to couple clutchmember 98 and sprocket Wheel I 12 for driving feed roll 50 from shaft95. A hood |15 is-removably secured to the supporting frame forenclosing the gearing on one side of the frame. Y

A roll of adhesive tape |16 is mounted in a dispensing device |11 whichis mounted on the hood |15 and positioned so that a strip of the tapemay be pulled from the roll and energized and then applied across theedge of the sheet wrapped around the mattress.

The operation of the machine will be as follows: The end of the web ofpaper from the selected roll 3| is placed between the feed rolls 56 and5|. The table section 33 may be swung upwardly for access to said rolls.Pedal |55 will be depressed to shift link 58 and arm 51 to raise roll 50above roll 5 I, and said pedal may be secured by latch 59 to hold roll5| raised While the leading end of the paper is placed between rolls 5i)and 5|. The latch 59 is then shifted to release pedal |55 so that roll5| will engage the paper. Next the operator will depress pedal |14 toengage clutch member 98 and sprocket wheel I 12 so that chain I1I willbe driven'by motor |54 andwill drive sprocket wheel I 10 and feed roll50 until the web of paperis advanced to overlap the table section 42 andits leading end can be connected to the mandrel. The operator will thendepress pedal I 09 to shift rocker I 01 into its neutral position anduncouple clutch member 98 from sprocket wheel I 12 to stop the advanceof the web of paper when theV leading'end isy in the position desired.Next, a mattress will be moved fcrwardly onto the paper onV tablesection 42 and over table section 33 with its leading end adjacent thecollapsed mandrel. The leading end of the paper will then be insertedbetween one of the overlapping portions of contiguous inne-r and outermandrel sections which are then spaced apart. Next, the operator willdepress pedal |22 to shift link |23 and lever |24 and slide stem 14inwardly in sleeve 6I. The linkages between said 7 niemandrtheinneraandnnter mandrelrsectionewillebenperated-to.oensediwo,icoactingzseotionsto erin ztnezleadineeendinf: tnerinaper and tllezmann drelfrwillzibe-'lexpanded:for,.eneegementwitn- -the .animent-mattress foperationo stem `'ai`willioperatethexlnlrageszto; diierentiallyshift :the :innemendouter..-sectinns -orilosingthe gapzbetneen tnem v when :they areexpanded and. .grip- :ping the fpaper. :and-increasing ,the diameter vof'the :mandrel ltto :engage z the'funderlying frontend o'thernattresssumciently `Lto canse -the mattress .to perpressed.upwardlyiagainst themandrel Yby the weighted vtable V section .d2 during `the rotation .pf`theirmal.ldrel. .z-Next,.ftl1e-,operator .will depress nejdal fihiltoshiitilink m5, :lever leand elutoh member-f 9.3,?intozengaeementf-.with clutohm-ember 88 :onvpi-nion' H10 :While :theA'motor 15d is running. The 'mand-rel .willi-then be rotated fromolntohxnember-#SQ byzpinion Lilli; and gear i'ii which f skeyed :tof'thesleeve 4|| of 'the mandrel. When lever |04 is shiied'to engagenlutehmemibersf andfQB,--it;willmovezdog 2| il! inwardly so that :tooth 'H3lonfsaid xdog snaps into -notoh l1 :i in Stud Handgthe clutchmemberlivill beheld engaged withfclutch memper'gsagainst :the force ef.spring 13112 #until the mandrel has been rotated afsufficientnumbered-revolutions to complet-e a minding-.and wrapping-:operation:The .striker {l1-l 9 on the gear Jil 8 f When-it .completes a 1revoluitioneand afterfeaehrrwnding@operation nas 4losen completed-will,engageidog d I- and Arelease it `from stud v1`|5:.andfp ermit ;spr ing1 !)2 to disengage cluphmembersf @riddim and stop the mandrel. DuringVthis:predeterrnined rotation of the man- ;firelfathe V:nlattressf ancl.paper will be spirally .wound aronnd-fthmmandrel nntiltne mattress hasbeen completely Wrapped. A lilibenitlle mandrel stops, thelfexilllrbe atrailing portion of paper of snincientvlengthroverlyingfztablesection 42V.betweellthelirtiing'end of the'imattress and thetransverse':lineiofotranelp: the cutter-disk fforoverlapping andenclosingzzthe trailing endof the mattress. Next, the cirttendisk'isqoperated across the paperfto sever itffrom the web. Next, .theffreetrailing portion ofthe sheetis folded to overlap the outerfendgofthe-ispirally wound mattress and adhesively secured `to seal the paperaround ythe mattress 'by a'strip of adhesive tape drawn fromthe --rollH6 and secured a-cross the `jointfbettveen the end andan overlappedportion ofjthe Wrapper. AFor acutting operation of the web, the operatorWill'shigft--switeh |52 into position to .closeiaacircuit'and startmotor 154m one direction v-wliile the cutter carriage |39 ispositiene@outwardlyv of one side ofthe web of paper. rlille endless@chain ldriven by motor ifi lwill shift the carriage |39 and thestationary chain #d4-,will rotate the cutter disk |35 as it travelsacross the-Webeofpaper. When :the carriage |39 engages the camorfarm|67, said arm will be de pressed `and open .the limit switch |63 vandYthe circuit for the motor to stop the motor and cutter-carriage afterthe web vllas `been severed. At Athe end Yof vthe next wrappingoperation, switch 1|.E2fwill be shiftedto close `a circuit for operatingthe motor |54 in "the opposite direction. This circuit will be throughtheglimit switch v|64 so themotor will operate the carriage |39 to shiftthe cutter across the web ofthe paper in the opposite directionuntilthe-carriage opens the limit switch-164. Injthis manner, the cutter isalternately operated in opposite directions and automatically'stoppedat'the end of .each cutting operation.

:After-.the -fnmttress has been wrapped and 'the Cri B l fwrapner,".llas-:fheen sealed--; around itne mattress. -thennerator twilldepress pedal |22 to 'shift dink i23-;and lever 245130 move the stemMoutwardly in sleeve-1.61 .ofthe mandrel. `Stem ,M will operate thelinkages ,Jmetween itfand the Vinner and outer "mandrelseotionsto-contract the :mandrel and release thennerendioi the paper. YDuringithis operation, the mandrel sections will be contracted so that theWrapped v mattress can be removed lendwise from the:mandrel after' thewrapped mattressfhas Ibeen vremoved from the mandrel. The projectingportions ni the wrapper, which Yis of greater Width than the mattress,are folded ,andsealed around the-ends of ,the'mattress In:someinstanoesrit-is desirable .to wrapmore thanpredetermined'-rconvolutions .around the -spirally-wound -fmattress Forthis purpose-the pedali will be depressedqby the operator ,t0vsufiioient distance toyengage clutch memberse andas!! 4without lockingdoe If :into thefnotch H4 in the .Stud H5. .Said pedalslrfill .beheldldepressed untilthe added cenvolutions of paper have been Wrappedaroundtnemattress andtnen released. A .bar 1littis .slidably mounted-on theAinside of one of themandrel sections B and ,provided Wit-hafradialgpin'|13. WhenJo-ar H2 vis pulled outwardly, .etlaegpin |123 Willy-bevvisible ,as :the mandrel rotates tof-indignato to the operator theadditional revolutions of the,=mandrel and the vmandrel will be stoppedwhen desired.

The inventionl-isfnot .to z-befunderstood 4asilimited to ltine `detailsdescribed, ,since these maya-be Vmodified within theaSoQPe-of 'theappended IClaims without departing :from -the spirit y and seppe of theinvention.

`Having thus described 'my finvention, what I claim as new-andA.desire-fno v,secure by Letteis Patent :is:

l. A mattress wrapping-machine comprisingz a'tableror supportinga'matt-ress Iwith an-under lying web onpaper;airotatablemandrel over thetable and ,including collapsible and `expansible lsections ,havingoverlapping peripheral members Vfor gripping the .web -hetween them;Ymechanism Vfor rotating the mandrel :to `Wind 'the mattress.thereon-and :wrap :the paper aronndf-the mattress; and. ,means -forexpanding the 1- mandrel and gripping .the-end of the Web-ofpaperheftweenoverlapping members of 'the sect-ions and contracting.l.the mandrel to reduce its diameter for releasing themattress'and-separatingthe members from one-:another to release thepaper, the mandrel being-:unsupported at one of :its ends for endwiseYremoval-of the wrapped -mattress.

2. A mattress wrapping machine comprising: a table for supporting-amattress -Witli an underlyingt WebV of fpaner; `a rotatable-mandrel overthe table and including l collapsible and expansible sections thawing`overlaiinping 'peripheral members for gripping 'the web "between them,mechanism Vfor rotating the mandrel to Wind the mattress thereon andWrap the-paper around themattress; means for urging the tableV againstthe mattressy towpress it against the mandrel; andnleans for expandingthe AInandreland grip ping the endfof the Web'of paper betweenoverlapping members of the sections and ,contractingA --the Y frnandrelto reduce -its diameter for releasing the -mattress and separating themembers' fron one .another Vto release the paper; 4the mandrelbeingeunsupported at one of im ends for endwise vremoval y .of -thewrapped matti-ess,

3. AA mattress wrapping mannine comprising; atable for-:snppnrtnefamattressnitnannnderflying web of paper; a rotatablesleeve; a mandrelcarried by the sleeve over the table and including collapsible andexpansible sections having overlapping peripheral members for grippingthe Web between them, mechanism for rotating the sleeve and mandrel towind the mattress on the mandrel andwrap the paper around the mattress;a stem slidably mounted in the sleeve; and means operable by the stemfor expanding the mandrel and gripping the end of the web of paperbetween overlapping members of the sections andY contracting the mandrelto reduce its diameter for releasing the mattress and separating themembers from one another to release the paper, the mandrel being.unsupported at one of its ends for endwise removal of the wrappedmattress. 1

4. A mattress wrapping machine comprising: a table for supporting amattress with an underlying web of paper; a rotatable sleeve; arotatable mandrel carried by the sleeve over the table and includingcollapsible and expansible sections having overlapping peripheralmembers for gripping the web between them, mechanism for rotating thesleeve and mandrelto wind the mattress on the mandrel and wrap the paperaround the mattress; a stem slidable in the sleeve; and toggle linksoperable by the sleeve for expanding the mandrel and gripping the end ofthe web of paper between overlapping members of the sections andcontracting the mandrel to reduce its diameter for releasing themattress and separating the members from one another to release thepaper, the mandrel being unsupported at one of its ends for endwiseremoval of the wrapped mattress.

5. A mattress wrapping machine comprising: a table for supporting a.mattress with an underlying web of paper; a rotatable sleeve; arotatable mandrel over the table and including collapsible andeXpansible pairs of oppositely disposed sections having overlappingperipheral members for gripping the web between them, mechanism forrotating the sleeve and mandrel to wind the mattress thereon and wrapthe paper around the mattress; and diierential toggle links between thepairs of oppositely disposed members and the stem for expanding themandrel and gripping the end of the web of paper between overlappingmembers of the sections yand contracting the mandrel to reduce itsdiameter for releasing the mattress and separating the members from oneanother to release the paper, the mandrel being unsupported at one ofits ends for removal of the wrapped mattress.

6. A mattress wrapping machine comprising: a frame; front and rearmattress-supporting table sections with `a gap therebetween; a pair ofrolls under the rear section for feeding a web of paper through the gapand onto the front section; the rear section being supported to swingvertically in the frame to provide access to the feed rolls; means forholding one of the rolls separated; an expansible and contractiblemandrel over the front table section; mechanism including a motor and aclutch for rotating the mandrel for winding the mattress thereon andwrapping the web of paper around the mattress; a pedal on the front ofthe frame for shifting the clutch; means for expanding the mandrel togrip the paper and for contracting the mandrel to release J(he mattressincluding pedals at the front of the frame; pedals on the front of themachine for operating the means for collapsing and contracting themandrel, and means for yieldingly urging the front table section topress the mattress against the mandrel. y

7. A mattress wrapping machine comprising: a frame; front and rearmattress-supporting table sections with a gaptherebetween.; rolls underthe rear section for feedingV a web of paper through the gap and ontothe front section; motor-driven gearing for driving saidrolls andincluding a clutch; an expansible and controllable mandrel over thefront-table section; mechanism including a motor and a clutch forrotating the mandrel for winding the mattress thereon and wrapping theweb of paper around the mattress; pedals on theviront of the frame forcontrolling the clutches for driving the feed rolls and -the mandrelrespectively; means for expanding the mandrel to grip the paper and forcontracting the mandrel to release the mattress including pedals at thefront of the frame; and means for yieldingly urging the front tablesection to press the mattress against the mandrel.

8. A mattress wrapping machine comprising: a frame, front and rearmattress-supporting table sections with a gap therebetween; rolls underthe rear section for feeding a web ofl paper through the gap and ontothe front section; mechanism including ya clutch for driving the feedrolls; an expansible and contractible mandrel over the front tablesection; mechanism for rotating the mandrel for winding the mattressthereon and wrapping the web of Ipaper around the mattress; pedals atthe front of the frame for controlling the clutches, respectively; andmeans for expanding the mandrel Ato grip the paper and for contractingthe mandrel to release the mattress including pedals at the front of theframe.

9. In a mattress wrapping machine, a frame, a stationary generallyhorizontal rear table section on said frame for slidably supporting thetrailing portion of the mattress, a front table section movably mountedon said frame for supporting the leading portion of the mattress, amandrel journaled on said frame to extend across said front tablesection, means for moving said table section upwardly to move the frontportion of the mattress toward said mandrel, said front and rear tablesections having |a gap therebetween through which extends a web ofwrapping paper, means for guiding the paper from under the rear tablesection through the gap between said table sections and onto said fronttable section, said mandrel being expansible and contractible and beingprovided with means lfor gripping the leading edge of the paper, powermeans for rotating said mandrel to wind the paper and the mattressaround said mandrel, and means for expanding and contracting saidmandrel and to grip and release the paper, and to release the rolledmattress therefrom.

10. In a mattress wrapping machine, a frame, a stationary rear tablemounted on said frame for slidably supporting the trailing portion ofthe mattress to be wrapped, ya front table section pivotallymounted onsaid frame adjacent its rear end and slidably supporting the leadingportion of the mattress, a mandrel rotatably journaled on said frameabove said front table section, means for moving the forward end of saidfront tabl-e section upwardly to force the front portion of the mattresstoward said mandrel, said front and rear table sections having a gaptherebetween through which a web of wrapping paper is adapted to extend,means for guiding the paper from under the rear section through the gapand

